Forward mail to another account

Advantages

Easy for users to set up after they follow the instructions and get the forwarding account confirmed with Google.

Users have control and can change where their messages are forwarded to.

Limitations

Users can set up only one forwarding address.

Administrators have no visibility or control over this feature on a per-user basis. However, G Suite administrators can disable the ability to forward messages for all users in the Google Admin console.

Use a filter

By using a filter, a Gmail user can manage the flow of incoming messages by automatically taking actions on messages (archiving, deleting, forwarding messages) based on rules.

Advantages

Instead of forwarding all incoming messages, Gmail filters can forward messages based on certain rules. For example, you can forward messages from certain addresses or that have a particular subject.

Limitations

Users can create up to 20 filters that forward to other addresses.

Administrators have no visibility or control over this feature on a per-user basis. However, G Suite administrators can disable the ability to forward messages for all users in the Google Admin console.

Set user-level routing: admin

As a G Suite administrator, you can set user-level routing to create additional destinations where messages are delivered for specific user accounts.

Advantages

Administrators have control and visibility over where user mail is forwarded.

This feature can be managed from the Google Admin console.

Limitations

Administrators can't forward mail to any email address hosted by G Suite, which includes other addresses in your domain. To forward a user's email to a G Suite address, have the user set up a forwarding address from his or her Gmail account.